Description:
------------
In addition to the existing __call, __set, __get, etc...  it would be Very nice to have:

__add : for code that uses the + and += operators
__subtract : for code that uses the - and -= operators
__multiply : * and *=
__divide : / and /=

and

__concat (or __concatinate) for . and .= operators


Expected result:
----------------
So that we can now write:

$objFoo = new Foo();
$objBar = new Bar();

A)  $objFoo += $objBar;
or
B)  $objFoo += "fooBar";
or
C)  $objFoobar = $objFoo + $objBar;

which would be equivellent to writing:

A:  $objFoo = $objFoo->__add($objBar);
B:  $objFoo = $objFoo->__add("fooBar");
C:  $objFoobar = $objFoo->__add($objBar);

In my specific case (the task I'm trying to accomplish, which brought about this idea), I'm doing:

$objFoo->value .= "something";

which, I imagine, would perform:

$tempOne = $objFoo->__get("value");
$tempTwo = $tempOne->__concat("something");
$objFoo->__set("value", $tempTwo);

because $tempOne might be an object.

Actual result:
--------------
PHP is Awesome!